Century-old groundwater dominance of nitrate export of stream water in a claypan watershed in Missouri
Fengjing Liu, Michigan Technological University, College of Forest Resources and Environmental Science, Houghton, MI, United States, Robert N Lerch, USDA-ARS, Cropping Systems and Water Quality Research Unit, Columbia, MO, United States and John Yang, Lincoln University of Missouri, Jefferson City, MO, United States
